 Ashcroft雅斯科儀器儀表
產品分類
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流程壓力表
工業壓力表
通用壓力表
差壓表
衛生型壓力表 |
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RTDs
Thermocouples
溫度計EN 13190
溫度計ASME B40.200
護套 |
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壓力開關
差壓開關
溫度開關 |
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數顯式壓力校驗儀
精密測試壓力表
容積式壓力調節器
液壓校驗儀 |
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螺紋隔膜
ISO Rings
法蘭隔膜
高容積低量程隔膜
管道在線式隔膜
全焊接式隔膜
衛生型隔膜 |
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| 附件 |
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散熱管
阻尼器
電接點
毛細管
過壓保護器 |
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| 產品解決方案 |
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Since 2007
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Ashcroft Diaphragm Seals, Instrument Isolators, Iso-Spools and Iso-Rings
隔膜密封產品
Ashcroft密封隔膜及儀表防護系列包括：
螺紋隔膜、
ISO Rings、
法蘭隔膜、
高容積低量程隔膜、
管道在線式隔膜、
全焊接式隔膜和
衛生型隔膜。
● 防止阻塞
● 用于腐蝕性介質
● 極端的過程溫度狀況
隔膜密封
* 隔膜形式：螺紋，法蘭，在線管道，快速連接等多種形式
* 多種尺寸供選
* 接液材料：不銹鋼，哈氏合金，鉭，鈦，鎳
* 填充液：甘油，硅油，氟油，高溫油
■ Diaphragm Seals and Instrument Isolators
Ashcroft diaphragm seals are designed for use with pressure gauges, pressure switches, pressure transducers or pressure transmitters on process applications where (1) process element materials capable of withstanding corrosive effects of certain fluids are not available (2) the process fluid being measured would normally clog the pressure measuring device or (3) the process fluid in the measuring element might freeze due to changes in ambient temperatures.
A diaphragm assembly fabricated of materials that will withstand various corrosive media encountered, separates the measuring element from the process fluid. Since the space between the diaphragm and the measuring element is solidly filled with liquid, any movement of the diaphragm, caused by a change in the process pressure, will be indicated by the instrument.
Ashcroft diaphragm seals are normally mounted directly to the socket of the pressure instrument. A flexible stainless steel armored line assembly, is available for mounting the instrument as some point away from the diaphragm seal location to provide easy reading, or to limit the temperature of the instrument.
Diaphragm seals (instrument isolators) with filled capillary line assemblies are another good solution to the problem of hot liquid and gas lines. Due to the small diameter of the flexible capillary, a five-foot line length will usually ensure that the temperature of the instrument connection does not exceed 150 degrees Fahrenheit. This solution is also superior to a siphon on steam service where the water filled siphon might freeze.
Ashcroft Diaphragm Seals come in a wide variety of specifications, materials, pressure ratings, flange classes, process connection types and instrument connection sizes. This enables use in a diverse array of applications. Our diaphragm seals are most commonly used in the process, energy, chemical, water & waste-water, pharmaceutical, and food industries among others. There are literally thousands of applications of which we're able to meet your industrial needs with over 30,000 product variations in type, connections and materials.
■ Iso-Rings and Iso-Spools
Ashcroft Iso-Rings and Iso-Spools (Isolation Rings and Isolation Spools) are designed to provide a cost-effective sensing area / instrument that can monitor pressure exertion. All readings are reliable and accurate. Ashcroft instrument isolators offer the flexibility of instrument removal for calibration, repair, or replacement without shutting down the process flow.
Iso-Rings can be used for the pressure measurement of difficult fluids, tank level indication, long distance pipe pressure for break detection, pump output pressure and signaling to stop pumps or open a by-pass valve. Isolation rings can be used with Ashcroft pressure switches, pressure gauges, pressure transmitters and pressure transducers. Ashcroft offers a patented small-diameter piping Iso-Spools to benefit your industrial center. They're designed for measuring large sensing area in 1” to 2” diameter pipes. NPT threaded or flanged product options are available.
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